Well, Hitler was the Nazi leader of Germany during World War II, and Stalin was the Communist leader of the Soviet Union during World War II. Though both men were harsh dictators, the ideologies they functioned under were different.
New technologies like steam engines, railroads, and telegraphs made for communication and transportation easier. The ability to source and transport materials across the country with ease turned many local businesses into national companies.
They did not want the American Indians to revolt.
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